Abstract Factory

Provides interface for creating families or related or dependent objects without specifying their concrete classes

Benefits:

• Isolates concrete classes from client
• Allows for exchanging product families easy
• Promotes consistency among products

When to use:

• The system should be independent of how its products are created.
• The system should be configured with one of multiple families of products, like MS, Apple, Linux
• The family or related objects are designed to be used together, and this constraint must be enforced, this is the key point of Abstract Factory.
• You want to reveal only the interfaces, not the implementation of a library